PHOENIX (AP) — One mistake by Oliver Perez spoiled the Diamondbacks' chances of a three-game sweep.
Corey Dickerson drove a two-out, 0-1 pitch from Perez into the pool deck beyond the right field fence in the 10th inning for the tiebreaking home run in the Rockies' 5-3 win Sunday over Arizona.
"One pitch can change everything and that was the pitch," Perez said.
Dickerson hit a hanging slider from Perez (2-2), who was trying to quick-pitch Dickerson.
"I try to take the barrel straight to the ball. I don't try to do too much with it," Dickerson said.
Wilin Rosario, whose throwing error allowed the Diamondbacks to take a 3-2 lead in the fourth, hit a solo home run to tie the game in the sixth. Rosario singled in a run in the 10th to pad the Rockies' lead.
Ben Paulsen, called up Sunday to replace the injured Carlos Gonzalez on the roster, hit his first major league home run in the second, evening the score at 2.
Still, the Diamondbacks let their best opportunity to win go by.
"The home run beat us," Diamondbacks manager Kirk Gibson said. "We had a lot of pressure on them, we had a lot of opportunities. We were 2 of 14 with guys in scoring position."
Mark Trumbo doubled down the right field line in the first off Franklin Morales to drive in Ender Inciarte and Aaron Hill and give Arizona the lead.
Diamondbacks starter Wade Miley struck out eight in six innings, allowing three runs on five hits with two walks. Morales was also fairly sharp, allowing two earned runs on five hits in six innings.
Matt Belisle (3-6) got one out by ending the bases-loaded threat in the ninth for the win. LaTroy Hawkins picked up his 18th save by striking out the side in the 10th.
"That is a game we should win," Gibson said.
Rockies: Gonzalez was placed on the 15-day disabled list Sunday with knee and ankle injuries. ... Pitcher Brett Anderson, on the DL since Aug. 6, will see a spine surgeon Monday morning regarding a bulging disk in his lower back.